Electronic cigarette mouthpiece



FIG. 1 is a front elevational view of an electronic cigarette mouthpiece showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a perspective view thereof.

The front elevational view is symmetrical to the rear elevational view, and the left side view is symmetrical to the right side view. 

CLAIM The ornamental design for an electronic cigarette mouthpiece, as shown and described. 